Wrench



Jan. 31, 1928.

J. J. HAGGERTY WRENCH Filed Nov. 29. 1925 Patented Jan. 31, 1928.

UNITED srnrasv JAMES J". HAGGERTY, OF PORTLAND, OREGON.

WRENCH.

Application ined November e9, 192e. serial no. 151,483.

j This invention relates to tools and more particularly to a wrench of the type including a stationary jaw and a movable aw slid-x able towards and away from the stationary jaw and adapted to bereleasably held in a set position by engagement with a rack carried by the shank portion of the wrench.

One object of the invention is' to provide awrench of this type in which the movable 1U jaw may be Aeasily adjusted relative to the stationary jaw and securely but releasably held ina set position.

Another' object of the invention is to connect the movable jaw with a han-d grip carred by the shank of the wrench so that, when thewrench is in use, nthe hand grip may bermly `grasped. and danger of the movable jafw accidentally slipping out of proper spaced relation to the stationary jaw obvlate j Another object of the invention is to pen mit the movable jawto have limited tilting movement towards and away from the stationary jaw when in a set position. and the wrench operated similar to a Stillson wrench.4

4The invention is illustrated in the accompanying drawing, wherein` Figure 1 is a view showing the wrench principally in side elevation, thc hand grip being shown in longitudinal section;

Fig. 2 is a fragmentary view of the wrench 'showingthe movable jaw moved out of engagement with the rack for adjustment relautive to the stationary jaw;

j Fig. 3 is a transverse sectional view taken onthe line 3 3 of Fig. 1, and` j Fig. 4is a transverse sectional view taken lonthe line 1f-41 of Fig. 1. j j

L The wrench constituting the subj ectmat ter of this invention includes a stationary jaw 1, a shank or handle 2 having the stationaryjaw projecting transversely from its lfOrWardgend, a movable jaw 3' and a hand grip 4. The cooperating pipe or nut-engaging faces of the two jaws 1 and 3 are provided'with teeth `5 and 6 so that they may havejirm` gripping engagement with a pipe but if desired they'may have smooth faces. The portion of the shank or handle adjacent the stationary jaw is cut-to provide a `lorngitudinall'y extending rack 7 and the rear Vportion of the shank has opposite side -faces formed with'longitudinally extending grooves 81 which constitute guideways, the purposeof` which will be hereinafter set forth. It will thus be seen that the shank and stationary jaw together' with the rack 7 constitute a unitary vstruct-ure which will be very strong and at the same time simple `in its construction. i fi The movable jaw 3 is provided with an elongated body which entends longitiiidinally of the shank and when in an operative position extends in Vdiverging `relation thereto, as shown in Fig. 1, with the rear portion 9 of its'inner faces 10 contacting with the adjacent face of the shank. A. yoke 11 is car ried by the forward portion of the movable jaw and extends in straddling relation to the shank with its arms securely fastened in seats 12 formed in opposite side faces of the movable jawand its bridge portion 13 extending across the face of the shank provided with` the rack 7. The bridge portion of the yoke and adjacent portions of its arms are reduced in width, as clearly shown in Figs. l and 2, so that this portion of the yoke may fit between the rack teeth and ser curely but releasably hold the movable jaw in a set position. it should be further noted that the movablejaw may have a certain amount of rocking movement towards and away from the inner face of the shank 2 when the wrench is in use to loosen or tight en a pipe. Arms or strips 111 are secured in recesses or seats 15 formed inthe side faces of the movable jaw adjacent its rear end and project across the shank of the wrench and have their outer ends connected bya pin 16. If desired, a sleeve 17 may be mounted upon the pin or rivet 16 to engage the inner side faces of the arms la and prevent the arms from moving towards each other into binding engagement with the shank.

The hand grip e, by means of which the movable jaw is securely held against accidental movement out of a set position when the wrench is in use is substantially U- shaped in cross section and provided with side leaves 18 which overlie opposite side faces of the shank and carry inwardly eX- tending ribs 19 which fit into the grooves or guideways 8. These ribs serve to hold the hand grip in engagement with the shank and also serv-e to guide and limit its sliding movement longitudinally of the shank. spring strip 20 entends longitudinally of the hand grip between the shank 2 and the body portion of the hand grip, as shown in Figs.

1 and 4, and at itsjrear end is secured te .j

the hand Vgrip by a screw or other suitable fastener 2l. The forward end portion of the spring strip projects Jfrom the hand grip and normally extends in diverging relation to the shank, as shown in Fig. l. At its forward end the spring strip is rolled to form a sleeve 22 which .tits about the sleeve 17 and pin 16, as shown in Fig. 2, Referring to this figure, it will be seen that the spring strip is securely held in engagement with the pin and .provides a resilient `connection between the hand `gris and movable jaw. Therefore, the movable jaw may be shifted from lt-he posit-ion shown in Fig. l `to thatshown in Fig. 2 when it is desired to adjust it longitudinally -ot ,the shank and when released will be returned to the position shown in Fig. l with the bridge portion of its yoke engaging the rack to .releasably hold the. movable jaw in a set position.

When the wrench is in use, the movable jaw is shifted to the position shown in Fig. 2 yand may then be slid longitudinal-ly `of the shank into proper spaced relation thereto for vengagement with a pipe, indicated by .dotted lines in Fig.V l. llVhe-n in the adjusted position. .the jaws will engage opposite portions ot a pipe and itaturning movement is applied to the wrench in an operative direction the :movable jaw may swing towards the shank .a sufficient distance to ehi-ect tight gripping of the pipez without uthe bridge portion ot the yoke moving entirely out of engagement with the rack. When the wrench is swung in Ean opposite direction, the jaws may slide about .the pipe in the `usual ina-nner in order to `obtain anew grip for further tightening. In view .of the fact that :the hand grip is firmly grasped by the hand which engages the rear or handle forming portinonioif the shank the movable kjaw will be prevented from having movement longitudinally ot the shank out of proper spaced relation `to `the stationary jaw. It will'thus be seen that l have provided a wrench which can be very .easily adjusted and will be very eliective in operation.

Having thus described the invention, I claim:

l. A wrench comprising a shank. a stationary jaw carried thereby, a rack extending longitudinally of' the shank. a movable jaw, means slidably connecting the movable jaw with the shank and engageable with lthe .rack to releasably hold the movable jaw in a set position, a hand grip slidably carried by said shank, and resilient means connecting said hand grip with said movable jaw.

2, A wrench comprising a sha-nk, a stationary jaw carried by said shank. said shank being provided with a rack, a movable jaw disposedy at the opposite side ot said shank from said rack in operative relation to said stationary jaw, -a la-tching yoke carried by said movable jaw and s-traddling said shank and adapted to engage said rack to releasably hold the movable jaw in a set position, a second yoke carried by said movable ,jaw and straddling said shank, a hand grip slidably carried by said shank. and a resilient strip carried by said hand grip and extending from its forward end longitudinally of the shank and connected with the second yoke to permit movement of the movable jaw towards and away from said shank.

3. A wrench comprising a shank, a stationary jaw carried by said shank, said shank being provided with a rack, a movable jaw disposed at the opposite side of said shank from said rack in operative relation to said stationary jaw, a latching yoke carried by .said movable jaw and stiaddling said shank and adapted to engage said rack to releasably hold the movable paw `in a set posit-ion, a second yoke carried by said inovable jaw and straddling `said shank, a hand grip slidably carried by said. shank in stradd'ling relation thereto and having side walls provided with inwardly extending guides, the shank having opposed faces formed with longitudinally extending grooves receiving said guides to limit sliding of the hand grip, and a strip ofi resilient material extending longitudinally of the shank and having one end secured to said hand grip and its other end secured to the second yoke.

4. A wrench comprising a shank, a sta,- .tionary jaw carried by said shank, said shank being provided with a rack, a movable jaw disposed at the opposite sidel of said shank `from said rack in operative relation to said stationary aw, a `latching yoke carried by said movable aw and straddling said shank and adapted to engage said rack to releasably hold the movable jaw in a set position, a second yoke carried by said movable jaw and straddling said shank, a hand grip slidably carried by said shank in straddling relation thereto and having side walls provided with inwardly extending guides, the shank having opposed taees for-med with longitudinally extending grooves receiving said. guides .to limit sliding ot the hand grip. and a strip of resilient material extending longitudinally of the shank and having vone end secured to the second yoke, said hand grip overlying said resilient strip tor a portion of its length and having the strip secured to yits inner tace.

5. A wrench comprising a stationary jaw, a shank extending therefrom and formed with teeth to provide a longitudinally extending rack upon the opposite side of the shank trom the jaw, a movable jaw having ay body extending longitudinally of the shank at' the side opposite the rack and slidable towards and away from the stationary jew. a U-shaped yoke straddling said shank and yhaving its arms secured to opposite side lili faces of said movable jaw and its bridge portion reducedto form a latch bar to engage between the teeth of said rack and releasably hold the movable jaw in a set position, a, hand grip slidable longitudinally upon the rear portion of said shank, a resilient strip secured to said hand grip and projecting forwardly therefrom, and

arms extending lrom op osite sides of the rear portion of said mova le jaw across said shank and connected with the forward end of said strip.

6. A wrench comprising a stationary jaw, a shank extending therefrom and formed with teeth to provide a longitudinally eX- tending rack upon the opposite side of the shank from the jaw, a movable jaw having a body extending longitudinally of the shank at the side oppositethe rack and slidable towards and away from the stationary jaw, a U-shaped yoke straddling said shank and having its arms secured to opposite side faces of said movable jaw and its bridge portion reduced to form a latch bar to engage between the teeth of said rack and releasably hold the movable jaw in a set position, a hand grip slidable longitudinally upon the rear portion of said shank, a resilient strip extending between the shank and hand grip and projecting from the i'orward end of the hand grip, a fastener securing the rear end of the strip to the hand grip adjacent the rear end thereof, arms extending from opposite sides of the rear portion oiE said movable jaw across the shank, the forward end of said strip being formed into a sleeve, and a pin connecting said arms and extending through said sleeve to connect the arms with the strip.

In testimony whereoil I ax my signature.

JAMES J. HAGGERTY. [Ls] 

